[INFO] cloning repository https://github.com/ogoodman/rust-tc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ogoodman/rust-tc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogoodman%2Frust-tc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogoodman%2Frust-tc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 124ce7ac75776ecdcdb96bef779251a0eafba0d4
[INFO] checking ogoodman/rust-tc against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogoodman%2Frust-tc" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ogoodman/rust-tc on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ogoodman/rust-tc
[INFO] finished tweaking git repo https://github.com/ogoodman/rust-tc
[INFO] tweaked toml for git repo https://github.com/ogoodman/rust-tc written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ogoodman/rust-tc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d7209c94f7bafaa2ee984130c582a8d681b2d519703e88ebf89275c4ac691de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7d7209c94f7bafaa2ee984130c582a8d681b2d519703e88ebf89275c4ac691de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d7209c94f7bafaa2ee984130c582a8d681b2d519703e88ebf89275c4ac691de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7209c94f7bafaa2ee984130c582a8d681b2d519703e88ebf89275c4ac691de", kill_on_drop: false }`
[INFO] [stdout] 7d7209c94f7bafaa2ee984130c582a8d681b2d519703e88ebf89275c4ac691de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49705395655b37f675cd623e632952db75c4ba2b46c4db7217bc7f648449ff9c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "49705395655b37f675cd623e632952db75c4ba2b46c4db7217bc7f648449ff9c", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rust-tc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/list.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn next(&mut self) -> Option<(&'a [u8])> {
[INFO] [stdout]    |                                  ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -     fn next(&mut self) -> Option<(&'a [u8])> {
[INFO] [stdout] 32 +     fn next(&mut self) -> Option<&'a [u8]> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:83:36
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let op = (op as *const Box<Cmp>).as_ref().unwrap();
[INFO] [stdout]    |                                    ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn new_cmp_ptr(cmp: Box<Cmp>) -> *mut libc::c_void {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:95:33
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Box::from_raw(p as *mut Box<Cmp>);
[INFO] [stdout]    |                                 ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:151:39
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn setcmp(&mut self, cmp: Box<Cmp>) -> Result<()> {
[INFO] [stdout]     |                                       ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/list.rs:32:34
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn next(&mut self) -> Option<(&'a [u8])> {
[INFO] [stdout]    |                                  ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -     fn next(&mut self) -> Option<(&'a [u8])> {
[INFO] [stdout] 32 +     fn next(&mut self) -> Option<&'a [u8]> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:83:36
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let op = (op as *const Box<Cmp>).as_ref().unwrap();
[INFO] [stdout]    |                                    ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn new_cmp_ptr(cmp: Box<Cmp>) -> *mut libc::c_void {
[INFO] [stdout]    |                         ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:95:33
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Box::from_raw(p as *mut Box<Cmp>);
[INFO] [stdout]    |                                 ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:151:39
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn setcmp(&mut self, cmp: Box<Cmp>) -> Result<()> {
[INFO] [stdout]     |                                       ^^^ help: use `dyn`: `dyn Cmp`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "49705395655b37f675cd623e632952db75c4ba2b46c4db7217bc7f648449ff9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49705395655b37f675cd623e632952db75c4ba2b46c4db7217bc7f648449ff9c", kill_on_drop: false }`
[INFO] [stdout] 49705395655b37f675cd623e632952db75c4ba2b46c4db7217bc7f648449ff9c